sound/isa/gus/interwave.c

File Facts

System

Linux kernel

Corpus path

sound/isa/gus/interwave.c

Extension

.c

Size

28298 bytes

Lines

1039

Domain

Driver Families

Bucket

sound/isa

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/err.h
• linux/isa.h
• linux/delay.h
• linux/pnp.h
• linux/module.h
• asm/dma.h
• sound/core.h
• sound/gus.h
• sound/wss.h
• sound/tea6330t.h
• sound/initval.h

Detected Declarations

• struct snd_interwave
• struct rom_hdr
• function snd_interwave_i2c_setlines
• function snd_interwave_i2c_getclockline
• function snd_interwave_i2c_getdataline
• function snd_interwave_detect_stb
• function snd_interwave_detect
• function snd_interwave_interrupt
• function snd_interwave_reset
• function snd_interwave_bank_sizes
• function snd_interwave_find_memory_config
• function snd_interwave_detect_memory
• function __snd_interwave_restore_regs
• function snd_interwave_init
• function snd_interwave_mixer
• function snd_interwave_pnp
• function pnp_port_start
• function snd_interwave_card_new
• function snd_interwave_probe_gus
• function snd_interwave_probe
• function snd_interwave_isa_match
• function snd_interwave_isa_probe
• function snd_interwave_restore_regs
• function snd_interwave_restore_memory
• function scoped_guard
• function snd_interwave_card_suspend
• function snd_interwave_card_resume
• function snd_interwave_isa_suspend
• function snd_interwave_isa_resume
• function snd_interwave_pnp_detect
• function snd_interwave_pnpc_suspend
• function snd_interwave_pnpc_resume
• function alsa_card_interwave_init
• function alsa_card_interwave_exit
• module init alsa_card_interwave_init

Annotated Snippet

module_init(alsa_card_interwave_init)
module_exit(alsa_card_interwave_exit)

Annotation

• Immediate include surface: `linux/init.h`, `linux/err.h`, `linux/isa.h`, `linux/delay.h`, `linux/pnp.h`, `linux/module.h`, `asm/dma.h`, `sound/core.h`.
• Detected declarations: `struct snd_interwave`, `struct rom_hdr`, `function snd_interwave_i2c_setlines`, `function snd_interwave_i2c_getclockline`, `function snd_interwave_i2c_getdataline`, `function snd_interwave_detect_stb`, `function snd_interwave_detect`, `function snd_interwave_interrupt`, `function snd_interwave_reset`, `function snd_interwave_bank_sizes`.
• Atlas domain: Driver Families / sound/isa.
• Implementation status: integration implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.